(20 Points) Read the textbook from pp. 307313, and do the following problem: Steam produced in a power plant at a pressure of 8,000kPa and a temperature of 450C is fed to a turbine. Exhaust from the turbine enters a condenser at 10kPa, where it is condensed to saturated liquid, which is then pumped to the boiler. What is the thermal efficiency of a Rankine cycle operating at these conditions? What is the thermal efficiency of a practical cycle operating at these conditions if the turbine efficiency and pump efficiency are both 70%